I was inspired to create this page by some incredible calculations on the show "Letters and Numbers". While working with a grade 3 group on multiplication and division, I used the nrich Make 100 puzzle as a challenge, and thought Letters and Numbers would make a good lead-in. The first couple of videos have some great Letters and Numbers moments:
- Incredible Maths Calculation
- Lily Serna's amazing maths calculation
- Slightly scary Japanese class using abacuses to perform incredible calculations - expert students are 12 years old so this is primary school level! (1:57)
- More detailed explanation of how to use an abacus "The Abacus - How to Use This Ancient Wonder" (5:48)
- "9 Year old Abacus Wizard" - watch a grown man using a calculator be beaten by a nine year old using an abacus (3:08)